The negative of a clause containing a compound verb with have is made by adding not or another negative word immediately after the appropriate form of have. In speech, some forms of have also have contracted negative forms.

present tense and past tense negative forms that are used less emphatically:

I/we/you/theyhaven’t;

he/she/ithasn’t

I/we/you/he/she/it /theyhadn’t

Hehasn’t found anywhere to stay this holiday.

Wehaven’t been here before.

Theyhadn’t looked very hard, in my opinion.

As a main verb, have is used to talk about:

states or conditions, such as possession or relationship.

In these uses, continuous tenses are not possible. With this meaning have is sometimes used alone, adding only not to make negatives, and adding nothing to make questions.

I have something for you.

We haven’t anything for you today.

Have you no sense of shame?

The driverhas had his breakfast, so we can go.

Wehad a good time.

It is also often used with forms of do to make negatives and questions.

Do you have a pen?

Does she have my umbrella?

She doesn’t have any brothers or sisters.

Do you have time to see me now?

Have got is an informal form of this main verb use of have, often used in speaking, especially in British English.

Ihaven’t got any brothers or sisters.

Has she got my umbrella? – Yes, she has.

She hasn’t got any money.

activities, including those such as eating, and leisure.

With this meaning of have, negatives and questions are formed using one of the forms of do.

He was having a shower when I phoned.

I’mhavinglunch at twelve o’clock.

Come andhave a sandwich with me,

No thanks. Idon’tusuallyhave lunch.

He’shaving a day off.

Did youhave a good holiday?

Contractions and weak forms are not possible with this meaning.Have got is not used with this meaning.

to express obligation using have to or have got to.

I’ve got to go now, I’m afraid.

Do you have to leave so soon?

Have you got to leave so soon?

When have is a main verb, it makes perfect forms like all other main verbs. This means that it is possible to use have twice in present or past perfect sentences, once as an auxiliary verb and once as a main verb.